RU2716954C2 - Collector assembly for electromagnetic valve and unit of electromagnetic valves using such unit - Google Patents

Abstract

FIELD: physics.SUBSTANCE: manifold assembly is intended for electromagnetic valve unit. In collector unit 2 there are fastening grooves 8a, 8b for attachment of silencer elements 50 and plurality of individual exhaust paths 9a, 9b, branched from said mounting grooves and open in mounting areas 3 of valve mounting surface 2A. Holes passing along axes of fastening grooves are formed as exhaust holes 13a, 13b in facilitating grooves 14, 14 on lower surface of collector unit. Silencer elements are retained in fastening grooves. Individual exhaust paths communicate with exhaust ports via silencer elements.EFFECT: technical result is more rational design of collector unit and unit of electromagnetic valves using such collector assembly.14 cl, 17 dwg

Description

Field of Invention

[0001]

The present invention relates to a manifold assembly for mounting a plurality of solenoid valves, and to a solenoid valve assembly mounted thereon, and more particularly, the invention relates to a manifold assembly in which an exhaust silencer element is integrated in a manifold assembly manifold.

State of the art

[0002]

A known collector for mounting a plurality of solenoid valves, for example, described in patent literature 1 and 2, and such a collector has a common air supply channel and a common exhaust channel that extend along the longitudinal axis of the manifold block, and a plurality of air supply communication holes and exhaust communication openings from the common air supply channel and the common exhaust channel, and the hole on the upper surface (on the surface onto which the solenoid valve is mounted) of the manifold block. When using the manifold, the compressed air supply pipe is connected to the hole of the common air supply channel open on the end surface of the manifold unit, and the electromagnetic valves are mounted on the surface for mounting the electromagnetic valves so that they correspond to a plurality of communication air supply openings and communication outlet openings.

[0003]

As in the common air supply channel, the opening of the common exhaust channel is located on the end surface of the manifold block, but sometimes to silence the exhaust sound, users install a silencer after this opening. Therefore, the applicant proposed a manifold for an electromagnetic valve having an integrated silencer, as described in Patent Literature 3. However, since the silencer is additionally attached to the opening of a known common exhaust channel, there is still room for rationalization of the design.

List of sources

Patent Literature

[0004]

Patent Literature 1: Japanese Unexamined Patent Application No. 2007-032831.

Patent Literature 2: Japanese Unexamined Patent Application No. 2009-257554.

Patent Literature 3: Japanese Unexamined Patent Application No. 2006-226377.

SUMMARY OF THE INVENTION

Technical challenge

[0005]

The present invention was created taking into account the above circumstances, and the technical task of the invention is to provide a collector assembly for a solenoid valve, which allows a more rational design of the collector assembly by incorporating a silencer element to suppress the sound of exhaust from the electromagnetic valve into the manifold assembly, and an electromagnetic valve assembly in This collector assembly is used.

The solution of the problem

[0006]

To solve the above-described problem, the present invention proposes a collector assembly for an electromagnetic valve for mounting a plurality of solenoid valves adjacent to each other, wherein the collector assembly comprises: a manifold assembly having a surface for mounting valves on which a plurality of mounting regions for electromagnetic valves, and the air supply channel, which opens into the mounting surface area for mounting valves and is designed to supply compressed air to the electric ferromagnetic valve; and silencer elements for suppressing the sound of exhausting air leaving the solenoid valves. The collector unit further comprises mounting grooves for attaching the silencer elements, and a plurality of individual exhaust paths that branch from the mounting grooves and open in the mounting surface regions for mounting valves, holes along the axes of the mounting grooves are formed as outlet openings on the outer peripheral surface of the manifold unit, and the elements silencers are held in mounting grooves. individual exhaust routes communicate with exhaust openings through muffler elements.

[0007]

In the manifold assembly for the solenoid valve of the present invention, it is preferable that the mounting grooves are formed along a direction in which mounting regions are located adjacent to each other on the valve mounting surface and penetrate between the end faces of the manifold block. In this case, it is more preferable that the brackets are removably attached to both end surfaces of the manifold block, and the end holes are closed by these brackets. The silencer elements can be held in the mounting grooves by fixing with adhesive in the mounting grooves.

[0008]

Alternatively, it is preferable that relief grooves extend along the bottom surface of the manifold block along the mounting grooves and the outlet openings open in the walls of the relief grooves. In this case, it is preferable that springy elastic elements are attached to the facilitating grooves due to their elastic strength in the state of elastic deformation, while the elastic elements abut the silencer elements in the fixing grooves through the outlet openings and, thus, the silencer elements are held in the fixing grooves. More preferably, the elastic members are pressed against the silencer elements by the elastic force generated by the elastic deformation.

[0009]

Further, the supply channel may comprise a common air supply channel for supplying compressed air to a plurality of solenoid valves, and a plurality of individual supply paths branching off from the common air supply channel and opening on the surface for mounting the valve, and the common air supply channel may extend parallel to the mounting grooves and may penetrate between both end surfaces of the manifold block. In this case, the mounting grooves can be made on both sides of the common air supply channel.

[0010]

Further, in the manifold assembly for the solenoid valve of the present invention, it is preferable that the silencer elements include sound-absorbing material, and this sound-absorbing material is located at least at the junctions with the individual exhaust paths in the mounting grooves. In this case, it is more preferable that the silencer elements are formed entirely of sound-absorbing material in the form of a rod having substantially the same cross-section as the mounting grooves and have substantially the same axial length as the mounting grooves.

The above-described technical problem can also be solved by means of a solenoid valve unit comprising a plurality of solenoid valves mounted on mounting surface areas for mounting a valve of a manifold assembly for an electromagnetic valve.

The positive effects of the invention

[0011]

As described above, in the collector assembly of the present invention, since a configuration is used in which a plurality of individual exhaust paths leading to the mounting areas for the solenoid valves branches off from the mounting grooves in which the silencer elements are fixed, and the silencer element is integrated into the collector unit, for example, a more rational design of the collector block becomes possible, for example, the dimensions and weight of the collector block are reduced.

Brief Description of the Drawings

[0012]

FIG. 1 is a perspective view illustrating a solenoid valve unit having a plurality of solenoid valves mounted on a manifold assembly for a solenoid valve according to a first embodiment of the present invention.

FIG. 2 is a schematic partial section of the block of FIG. 1.

FIG. 3 is an exploded perspective view of a first embodiment of a manifold assembly for an electromagnetic valve.

FIG. 4 is a bottom view showing a state in which silencer elements are attached to a manifold block.

FIG. 5 is a perspective view illustrating a cross section of the collector block of FIG. 4.

FIG. 6 is a perspective view illustrating a longitudinal section (axially) of a manifold block.

FIG. 7 is a schematic illustration of a second embodiment of a manifold assembly for an electromagnetic valve of the present invention.

FIG. 8 is a bottom view of the collector assembly of FIG. 7.

FIG. 9 is a side view of an elastic member attached to a manifold block.

FIG. 10 is a front view of the element of FIG. nine.

FIG. 11 is a perspective view of the element of FIG. nine.

FIG. 12 is a perspective view of a modified resilient member.

FIG. 13 is a side view illustrating a state in which the resilient member of FIG. 12 is attached to the manifold block.

FIG. 14 is an enlarged side view illustrating the main part around the mounting groove in FIG. 12.

FIG. 15 is a perspective view illustrating the state before attaching the resilient member of FIG. 12 to the manifold block.

FIG. 16 is a side view schematically illustrating a third embodiment of a manifold assembly for an electromagnetic valve of the present invention.

FIG. 17 is a bottom view of the collector assembly of FIG. 16.

Description of options

[0013]

The following is a detailed description of the manifold assembly for the solenoid valve of the present invention with reference to the drawings. In FIG. 1-7, a manifold assembly 1A for a solenoid valve according to a first embodiment of the present invention is shown.

[0014] As shown in FIG. 1 and 2, the first embodiment of the manifold assembly 1A is intended to form an assembly (block) of electromagnetic valves by mounting and uniting a plurality of electromagnetic valves 30. The manifold assembly 1A comprises a manifold assembly 2 having a surface 2A for mounting valves to arrange the electromagnetic valves 30 side by side with the other in the width direction, muffler elements 50 installed in the manifold block 2 for suppressing the sound of exhaust from the solenoid valves 30, and a pair of brackets 19, 19 attached to both end surfaces collector block

[0015] As shown in FIG. 1 and 2, the solenoid valves 30 are well-known five-way solenoid valves having a control valve 31 and exhaust ports A and B for releasing compressed air supplied from the manifold assembly 1 to an actuator (not shown). In FIG. 1 shows an example in which five solenoid valves 30 are mounted on a manifold block 2, but since in this case the solenoid valves 30 are of the same design, they will all be described with reference to FIG. 2.

[0016] As shown in FIG. 2, the solenoid valves have a main valve portion 32 with a spool 35, which is the main body of the valve and having a substantially rectangular parallelepiped shape with a substantially rectangular cross section, first and second adapter portions 33, 43 connected to both end surfaces in the axial (longitudinal) direction the main part 32 of the valve, and a control valve 31 connected to the first section 33 of the adapter. The main portion 32 of the valve has a housing 32a in which the valve channel 34 is formed, extending in the axial direction, and designed to accommodate the spool 35, made with the possibility of sliding in the axial direction. The through inlet 26, the first and second exhaust openings 37a and 37b, and the first and second exhaust openings 38a and 38b are in communication with the valve channel 34. Of these through holes, the through inlet 36 and the two exhaust openings 37a and 37b are open on the lower surface of the housing 32a corresponding to the mating surface adjacent to the mounting surface 2A of the manifold block 2. On the other hand, two through-outlets 38a, 38b are open on the upper surface of the housing 32a through two outlets A and B, respectively.

[0017]

The through inlet 36 is located essentially in the center in the axial direction of the housing 32a, and the exhaust through holes 37a, 37b are located on both sides in the axial direction from the through inlet 36. The first exhaust through hole 38a is located between the through inlet 36 and the first exhaust through the hole 37a in the axial direction, and the second outlet 38b is located between the through inlet 36 and the second exhaust through-hole 37b, and the state of the connection paths between these through holes can be switched by sliding the slide 35.

[0018]

The first and second sections 33, 43 of the adapter have chambers 39, 40, cylinders in communication with the valve channel 34 in the main part 32 of the valve through the end surfaces of their bodies 33a, 43a. The first and second pistons 41, 42, which come into contact and out of contact with both axial ends of the spool 35, are slidably disposed in the chambers 39, 40 of the cylinder. The diameter of the first cylinder chamber 39 is larger than the diameter of the second cylinder chamber 40 and, accordingly, the first piston 41 located in the first cylinder chamber 39 also has a larger diameter than the second piston 42 located in the second cylinder chamber 40.

[0019]

The first pressure chamber 39a on the head side of the first piston 41 in the first cylinder chamber 39 (the left chamber defined by the first piston 41 in FIG. 2) communicates with the inlet through hole 36 through the control valve 31. When turned on, the control valve 31 connects the first pressure chamber 39a to the inlet through-hole 36, and when turned off, opens the first pressure chamber 39a into the atmosphere. On the other hand, the second pressure chamber 40a on the head side of the second piston 43 in the second cylinder chamber 40 (the right chamber defined by the second piston 42 in FIG. 2) always communicates with the inlet through hole 36. The other chamber is on the shaft side (on the spool side) in each chamber 39, 40 cylinders are always open to the atmosphere.

[0020]

In the solenoid valve 30 having the above-described design, the control air is supplied to and discharged from the first pressure chamber 39a of a larger diameter piston by turning the control valve 31 on and off. At this time, the spool 35 reciprocates in the valve channel 34 by differences between the shear forces acting on the pistons 41, 42 in the axial direction. As a result, the connection state between the through holes 36, 37a, 37b, 38a, 38b is switched. Reference numeral 45 in FIG. 2, a control device for manual control is indicated, which allows you to manually create the connection state of each through hole when the control valve 31 is turned on.

[0021]

Since the structure of such a solenoid valve 30 is well known and not directly related to the essence of the present invention, a further description of its structure is omitted.

[0022]

The following is a description of the manifold assembly 1A on which the solenoid valves 30 are mounted.

As shown in FIG. 1 or 3, the manifold block 2 forming the manifold assembly 1A is configured as an elongated block body having a substantially rectangular parallelepiped shape integrally formed by molding or a similar process, and its upper flat surface is a surface 2A for mounting the solenoid valves 30. How shown by the dashed (imaginary) line in FIG. 3, the valve mounting surface 2A has a plurality of mounting regions 3 for individually mounting the solenoid valves 30, and the mounting regions 3 are disposed adjacent to each other in the longitudinal direction of the manifold block 2.

[0023]

In this embodiment, the valve mounting surface 2A is divided into mounting regions 3 so that five solenoid valves 30 can be mounted adjacent to each other and oriented in the transverse direction (in the width direction). Although the valve mounting surface 2A is divided into five mounting regions 3, this valve mounting surface 2A does not have dividing marks, such as boundary lines. However, if necessary, any marks may be applied to the surface 2A for mounting the valves. In FIG. 3, reference numerals 4 indicate threaded holes for screwing the solenoid valves 30 to the fastening regions 3, and in the example shown, there are two threaded holes 4 in each fastening region 4. That is, in this embodiment, each fastening region 3 is essentially defined by these two threaded holes 4. Block 2, the manifold is formed so that its size in the transverse direction (in the width direction) is substantially equal to the axial length of the body 32a of the electromagnetic valve 30.

[0024]

As shown in FIG. 2 and 3, channels 5 and 6 are formed in the manifold block 2 for supplying air to the solenoid valves 30. More specifically, channels 5 and 6 include a common supply air channel 5 for transmitting compressed air to be supplied to the plurality of solenoid valves 30, and a plurality of individual supply paths 6 that branch off from a common supply air channel 5 and open individually in mounting regions 3 of surface 2A for mounting valves. A common supply air channel 5 is formed in the central part in the transverse direction (in the width direction) of the manifold block 2 so as to pass through both end surfaces in the longitudinal direction of the manifold block 2. In this embodiment, both end surfaces of the manifold block 2 are formed symmetrically with respect to the end holes 7 of the common supply air channel 5. The common supply air channel has a substantially circular cross section and, as shown in FIG. 3, an internal thread is made on the inner peripheral stack of each end hole 7. A pipe fitting, for example, a quick-release fitting, on the external surface of which an external thread is formed, can be attached to the end hole 7 by screwing.

[0025]

The individual supply air paths 6 are paths along which compressed air from the common supply air duct 5 is directed to the electromagnetic valves 30 and formed so as to linearly extend between the inner peripheral wall of the common supply air duct 5 and the valve mounting surface 2A, as shown in FIG. . 2 or 5. The individual supply air paths 6 have a substantially circular cross-section, like the common supply air duct 5, and their diameter is smaller than the diameter of the common supply air duct 5. As shown in FIG. 3, in this embodiment, one individual supply channel 6 is open to a single mounting region 3, and in the longitudinal direction of the manifold block 2, only five individual supply paths 6 are located next to each other. Individual supply paths 6 are open in the central part of surface 2A for mounting valves in the direction of the width of the manifold block 2.

[0026]

The manifold block 2 has first and second mounting grooves 8a, 8b for attaching muffler elements 50, and a plurality of pairs of first and second individual exhaust paths 9a, 9b that branch off from the mounting grooves 8a, 8b and open in the mounting regions 3 of the valve mounting surface 2A . In this case, the first and second mounting grooves 8a and 8b have the same cross-sectional shape and size and are located symmetrically with respect to the common supply air channel 5 in the width direction of the manifold block 2.

[0027]

As shown in FIG. 2 and 3, the first and second mounting grooves 8 a, 8 b are formed as grooves opening on the lower plane of the outer peripheral surface of the manifold block 2 and having a substantially rectangular section. The mounting grooves 8a, 8b extend parallel to each other in the direction of mounting of the mounting regions 3 on the valve mounting surface 2A (i.e., in the longitudinal direction of the manifold block 2) and extend between the two end surfaces in the longitudinal direction of the manifold block 2. As shown in FIG. 2, the common supply air channel 5 is located essentially in the center in the height direction (vertical direction in FIG. 2) of the manifold block 2, while the mounting grooves 8a, 8b are formed in positions adjacent to the valve mounting surface 2A in the vertical direction of the block 2 collectors. As shown in FIG. 2 and 3, under a pair of mounting grooves 8a, 8b there is a pair of threaded holes 15, 15 extending in the axial direction of the mounting grooves 8a, 8b and open on both end surfaces of the manifold block 2, and screws 24 are fastened into these holes 15, 15 for fixing the brackets 19, which will be described below.

[0028] The specific form of the mounting grooves 8a and 8b will be described with reference to FIG. 2 and 3. The mounting grooves 8 a and 8 b have a bottom wall portion 10 formed as a flat surface extending in the direction of mounting of the fastening regions 3, a pair of side wall portions 11, 11 extending from the lower wall portion 1 to the lower surface of the manifold block 2, and protruding sections 12, 12 of the wall, protruding from a pair of sections 11, 11 of the side wall in the direction to each other. In this embodiment, openings formed between the distal ends of the protruding wall sections 12, 12 form exhaust openings 13a, 13b for discharging exhaust from the solenoid valves 30 to the outside and, as shown in FIG. 4, the exhaust openings 13a, 13b are open in the entire axial direction of the mounting grooves 8a, 8b.

[0029]

Thus, due to the protruding sections 12 of the wall, the width of the exhaust openings 13a, 13b is less than the width of the mounting grooves 8a, 8b, that is, less than the distance between the pair of sections 11, 11 of the side wall. Therefore, as will be described below, when the silencer elements 50 are placed in the fixing grooves 8a, 8b, the protruding wall sections 12 also work as supporting sections for holding the silencer elements 50 in the fixing grooves 8a, 8b (see FIG. 2). The cross-sectional area of each of the mounting grooves 8a, 8b is smaller than the cross-sectional area of the common supply air channel 5. In the cross section, the mounting grooves 8a, 8b are located above the center of the common supply air channel 5 (on the side of the surface 2A for mounting the valves).

[0030]

As shown in FIGS. 2 or 6, the first and second individual exhaust paths 9a, 9b are formed so as to linearly extend between each portion 10 of the lower wall of the first and second mounting grooves 8a, 8b, and the valve mounting surface 2A. As shown in FIG. 3, the first and second exhaust paths 9a, 9b are open on both sides of the individual air supply path 6 in the width direction of the manifold block 2 in each of the mounting regions 3. That is, all of the first individual exhaust ducts 9a open in the mounting regions 3 are always communicated with the first mounting groove 8a, and all second individual exhaust paths 9b open in the mounting regions 3 are always in communication with the second mounting groove 8b. The diameter of the individual exhaust paths 9a, 9b is substantially equal to the diameter of the individual air supply paths 6 and less than the width of the mounting grooves (i.e., less than the distance between the side wall sections 11, 11).

In this embodiment, when the solenoid valve 30 is mounted on the valve mounting surface 2A, the first individual exhaust path 9a is connected to the first exhaust exhaust port 37a formed in the electromagnetic valve 30, and the second individual exhaust path 9b is connected to the second electromagnetic exhaust pass-through hole 37b 30 (see Fig. 6).

[0031]

The silencer elements 50 located in the mounting grooves 8a and 8b are formed entirely of sound-absorbing material that is permeable to air and have the shape of a rod, more specifically, the shape of an elongated bar. As shown in FIG. 2 and 3, the silencer elements 50 have a substantially rectangular cross section similar to that of the mounting grooves 8a and 8b. The vertical and horizontal dimensions of their cross section are essentially equal to or slightly smaller than these sizes of the mounting grooves 8a, 8b, so that they can be inserted through the end holes of the mounting grooves 8a, 8b. Open-cell foam is used as sound-absorbing material, in which air bubbles communicate with each other or a fibrous aggregate formed by tangling fibers with each other, but other sound-absorbing materials can also be used.

[0032] As shown in FIG. 3, the silencer elements 50 are formed so that their axial (longitudinal) length is substantially equal to the axial length of the mounting grooves 8a, 8b, and the ends located on both sides of the silencer elements 50 and the ends located at both ends in the longitudinal direction of the manifold block 2 , were flush with each other in a state where the silencer elements 50 are inserted into the mounting grooves 8a, 8b. Accordingly, in a state where silencer elements 50 are attached to the manifold block 2, as shown in partial section in FIG. 5, the sound-absorbing material forming the silencer elements 50 is located on all joints of the individual exhaust paths 9a, 9b in communication with the mounting grooves 8a, 8b, respectively. That is, in this embodiment, the individual exhaust paths 9a, 9b always communicate with the exhaust openings 12a, 13b opening towards the lower surface of the manifold block 2 through the sound-absorbing material of the silencer elements 50, 50 located in the mounting grooves 8a, 8b.

[0033]

As shown in FIG. 2 and 3, in the lower surface of the manifold block 2, left and right facilitating grooves 14, 14 are formed extending along the mounting grooves 8a, 8b. Facilitating grooves 14, 14 extend between both end surfaces in the longitudinal direction of the manifold block 2. In this case, the relief grooves 14, 14 are formed so as to leave a part including a common supply air channel 5 and a pair of threaded holes 15, 15 in the direction of the height of the manifold block 2, and a pair of exhaust openings 13a, 13b open in the walls of the relief grooves 14, 14. That is, through these facilitating grooves 14, 14, exhaust from the exhaust openings 13a, 13b can be axially directed and discharged through the two end surfaces of the manifold block 2 into the atmosphere. In addition, it is possible to reduce the weight of the collector unit 2 and reduce production costs.

[0034]

Due to the presence of such relief grooves 14, 14, as shown in FIG. 2-6, in the central portion in the width direction, on the lower surface side of the manifold block 2, a central lower surface portion 16 is formed having the shape of a circular arc and concentric with a common supply air channel 5. As shown in FIG. 2, arcuate wall sections 17, 17 are formed on the left and right sides in the width direction surrounding the central axis of the threaded holes 15, 15, and these arcuate wall sections 17, 17 are divided in the peripheral direction by fan-shaped cutouts 18 extending along the central axis of the threaded holes 15 , fifteen.

[0035]

As shown in FIG. 1-3, a pair of brackets 19, 19 are attached to both end surfaces of the manifold block 2 having the above configuration. These brackets 19, 19 are designed to stably mount the manifold block 2 to a predetermined position and are formed integrally from a solid material, for example, metal plates or plates made of resin. The bracket 19 has an elongated leg plate 20 for attachment to the mounting location of the bracket block 2, and a pair of rising parts 21 21 that rise substantially vertically from the end edge extending in the longitudinal direction of the leg plate 20 and attached to the end surface of the manifold block 2.

[0036]

The leg plate 20 is bent inward from the lower edges of the pair of rising parts 21, 21 along the lower surface of the manifold block 2 and extends in the width direction of the manifold block 2. The leg plate 20 is longer than the width of the collector block 2, therefore, both longitudinal ends of the knee plate 20 extend outward from the side surfaces at both ends in the width direction of the collector block 2. At both ends of the leg plate 20 there are mounting holes 22, 22 extending in the direction of the thickness of the plate, and fasteners, such as screws, are inserted into these mounting holes 22.

[0037]

On the other hand, the lifting parts are bilaterally symmetrical in shape, and the mounting holes 23 used to attach to the manifold block 2 are formed approximately in a central position in the height direction (in the lifting direction). The mounting holes 23 and the threaded holes 15 of the manifold block are aligned with each other and the fixing screws 24 are inserted from the outside into the mounting holes 23, which are screwed into the threaded holes 15, and the brackets 19, 19 are removably attached to the manifold block 2 (see Fig. 1).

[0038]

The pair of rising parts 21, 21 has at the distal end in the height direction cover portions 25 that protrude inward so as to approach each other in the width direction of the manifold block 2. As shown in FIG. 1, all the end holes of the mounting grooves 8a, 8b on the end surface of the manifold block 2 are closed by these closing portions 25, 25. Therefore, the silencer elements 25 are firmly held in the mounting grooves 8a, 8b and it is possible to prevent the silencing elements 50 from falling out of the mounting grooves 8a, 8b regardless of the inclination at the installation site of the manifold block 2. A pair of rising parts 21, 21 is located at some distance from each other in the width direction of the manifold block 2 so as not to completely cover the end hole of the common supply air channel 5 and at least part of the end holes of the facilitating grooves 14, 14. The outer peripheral end surfaces of the closing sections 25, 25 are formed so as to be flush with the surface 2A for mounting valves on both end surfaces of the valve block 2.

[0039]

The following is a description of the general configuration of the manifold assembly 1 for the solenoid valve having the above configuration when the solenoid valve 30 is mounted on the manifold block 2. In FIG. 1 Solenoid valves 30 are respectively mounted on all mounting regions 3 of the valve mounting surface 2A, but since, as described above, these solenoid valves 30 are substantially the same in configuration, a case will be described where a single solenoid valve 30 is used. Depending on the number of actuators actuators do not have to install solenoid valves on some mounting areas 3. In this case, the openings of the individual supply air pu s 6 and individual exhaust paths 9a, 9b, which are open in the mounting area 3, at which no electromagnetic valves 50 can be plugged hermetically sealing elements, such as plugs or plates.

[0040] When the manifold assembly 1 for the solenoid valve is in operation, firstly, the solenoid valves 30 are mounted on the surface 2A for mounting the valves on the upper surface of the manifold block 2 using a sealing member 51, for example, a gasket interposed therebetween. In this mounted state, the individual supply paths 6 of the manifold block 2 are in communication with the feed through holes 36 of the electromagnetic valves 30, and the first and second individual exhaust paths 9a, 9b of the manifold block 2 are respectively in communication with the first and second exhaust pass-through holes 37a, 37b of the electromagnetic valves 30. Further, the plates 20, 20 of the legs of the brackets 19 are located at the installation site and in this state fasteners, such as bolts, are inserted into the mounting holes 22, 22 located at both ends of the plate ting 20, legs 20, and collector assembly 1 is fixed to the place of installation of these fasteners. The outlet openings A and B of the electromagnetic valves 30 are connected to pressure chambers of pneumatic actuators, for example, double acting cylinders (not shown). Compressed air enters the common supply air channel 5 channel block 2 of the manifold from a pneumatic source (not shown).

[0041]

In the on state of the control valve 31, control air supplied by the control air supply path (not shown) is supplied to the first pressure chamber 39a of the first cylinder chamber 39 through a channel in the control valve 31, and its pressure acts on the first piston 41. Then, due to the difference in the biasing force due to the fact that air pressure acts on the first piston 41 of a larger diameter located in the first chamber 39 of the cylinder, and on the second piston 42 of a smaller diameter located in the second chamber 40 of the cylinder, gold nick 35 is shifted from the second switching position on the side of the first adapter 33 to the first switching position on the side of the second adapter 43 shown in FIG. 2. In this first switching position, the feed through hole 36 and the first exhaust through hole 38a are connected, and the second exhaust through hole 38b and the second exhaust hole 37b are connected.

[0042]

In this state of connection between the through holes in the first switching position, the compressed air entering the supply through hole 36 of the electromagnetic valve 30 through an individual supply path 6 branching from the common supply channel 5 passes through the first through hole 38a and exits the first outlet A. On the other hand, compressed air from the second outlet B, i.e. the exhaust from the actuator passes through the second through-hole 38b and the second through-hole 37b in the solenoid valve 30 through the second individual exhaust path 9b of the manifold block 2 and is discharged through the exhaust hole 13b into the atmosphere. At this time, the exhaust that is sent to the second individual exhaust path 9b flows into the second mounting groove 8b in communication with the second individual exhaust path 9b, is muffled (distorted by sound absorption) by the muffler element 50 containing sound-absorbing material and housed in the mounting groove 8b, and, then, is discharged into the atmosphere through the exhaust port 13b.

[0043]

In the absence of power at the control valve 31, the supply of control air to the first pressure chamber 39 from the control valve 31 is blocked and the control air in the first pressure chamber 39a is discharged into the atmosphere through a channel in the control valve 31. Accordingly, the spool 35 is shifted to the second switching position under the action of the biasing force of the air pressure constantly acting on the second piston 42. In this second switching position, the feed through hole 36 and the second exhaust through hole 38b in the electric the solenoid valve 30 is in communication with each other, and the first exhaust through hole 38a and the first exhaust through hole 37a are connected.

[0044] In such a connected state of the through holes in the second switching position, the compressed air supplied to the supply through hole 36 passes through the second through hole 38b and is discharged from the second outlet B. On the other hand, the compressed air and the first outlet A, then there is exhaust from the actuator, passes through the first outlet 38a and the first exhaust through hole 37a of the electromagnetic valve 30 and through the first individual exhaust path 9a of the manifold block 2 and is output through the exhaust port 13b to the atmosphere. At this time, the exhaust sent to the first individual exhaust path 9a flows into the first mounting groove 8a in communication with the first individual exhaust path 9a, is muffled (attenuated by sound) by the muffler element 50 located in the first mounting groove 8a, and is discharged into the atmosphere through exhaust port 13b.

[0045]

Thus, in this embodiment, a configuration is applied in which the first and second individual exhaust paths 9a and 9b leading to the mounting regions 3 for the solenoid valves 30 branch off from the first and second mounting grooves 8a, 8b to which the silencer elements 50 are attached, which built into block 2 collectors. Therefore, there is no need to create a common exhaust channel, in contrast to the known solutions, and you can create a more rational design of the collector block 2, for example, reducing the size and weight of the collector block. Further, since the exhaust openings 13 a, 13 b are formed in the relief grooves 14, 14 formed in the lower surface of the manifold block 2, the exhaust sound can be further attenuated.

[0046]

In FIG. 7-11, a manifold assembly 1B for a solenoid valve according to a second embodiment of the present invention is shown. The main difference between the second variant of the collector node 1B and the first variant of the collector node 1A is that instead of attaching the brackets 19, 19 to the collector block 2, an elastic element 60 like a leaf spring having spring elasticity is attached to the lightening grooves 14. Therefore, the main details of both options are indicated by the same positions, and a description of the same component parts and their effect is omitted.

[0047]

As shown in FIG. 9-11, the elastic member 60 comprises a base portion 61 having a substantially flat plate shape, a rising portion 62 extending substantially in an orthogonal direction from the lateral edge of the base portion 61, and a spring portion 63 bent away from the distal end of the lifting portion 62 section 61 of the base and curved into a substantially arcuate shape. The elastic element 60 is formed integrally from a thin plate made of metal, for example, stainless steel.

[0048]

As shown in FIG. 11, a substantially rectangular hole 65 extending in the thickness direction of the plate is formed in the base portion 61. The hole 65 is used, for example, when removing the elastic member 60 attached to the manifold block 2. More specifically, by hooking the end of the tool or fixture to the edge of the hole 65 and pulling it outward (towards the bottom surface shown in Fig. 7), the resilient member 60 locked in the mounting groove 8a, 8b can be easily removed. The rising portion 62 is formed substantially as a flat plate having the same width as the base portion 61. At both ends of the distal end of the ascending portion 62, a pair of protruding portions 66, 66 are formed extending in the ascending direction of the ascending portion 62 so as to be in the same plane with the ascending portion 62.

[0049]

On the other hand, the spring portion 63 is formed by bending and bending the intermediate portion between the pair of protruding portions 66, 66 at the distal end of the ascending portion 62 to the base portion 61, and comprises a curved portion 63a located between the protruding portions 66, 66 and the flat straight portion 63b, having a wider width than the curved portion 63a. The curved portion 63a has a convex shape, the upper part of which is on the side opposite to the base portion 61, and the straight portion 63b is inclined in the direction from the rising portion 62 to its distal end. Thus, the spring portion 63 can bend around the bent portion 63a in the direction in which the spring portion 63 comes into contact and out of contact with the rising portion 62.

[0050]

Additionally, in this manifold assembly 1B, adjacent to both end surfaces in the longitudinal direction of the manifold block 2 (see FIG. 8), mounting holes 90 are formed that extend through the valve mounting surface 2A and the lower surface. These mounting holes 90 are for mounting fasteners, such as screws, and fixing the manifold block 2 at a predetermined installation location. In this embodiment, along each mounting groove 8a, 8b, there are two mounting holes 90 (there are four mounting holes in total) spaced apart from each other by a predetermined distance.

[0051]

Thus, the longitudinal length of the muffler element 50 in the second embodiment is formed shorter than the longitudinal length of the manifold block 2 and, specifically, it is formed shorter than the distance between the two mounting holes 90, 90 in the longitudinal direction of the collector block 2. A silencer member 50 is located between two mounting holes 90, 90 in the first and second mounting grooves 8a, 8b, and a silencing member 50 is thus located on all joints of the individual exhaust paths 9a, 9b and the first and second mounting grooves 8a, 8b.

[0052]

Next, a procedure for holding the silencer member 50 in each of the mounting grooves 8a, 8b with the elastic member 60 will be specifically described.

Firstly, silencer elements 50 are placed in the first and second mounting grooves 8a, 8b, and elastic elements 60 are placed on the side of the lower surface of the manifold block 2. At this time, the elastic members 60 are in a configuration in which the spring portion 63 is facing up (the upper part of FIG. 7) and the straight portion 63b of the spring portion 63 and the arcuate wall portion 17 of the manifold block 2 are facing each other. Then, the elastic member 60 is pushed towards the exhaust openings 13a, 13b in the mounting grooves 8a, 8b through the space between the arcuate wall portion 17 and the central lower portion 16, i.e., through the facilitating groove 4.

[0053]

Then, the straight portion 63b of the spring portion 63 comes into contact with the arcuate wall portion 17 (more specifically, with the upper surface of the wall covering the notch 18 in FIG. 7), the spring portion 63 is pressed in the direction of the rising portion 62 and is bent, and the elastic member 60 thus, is elastically fixed between the arcuate wall section 17, the protruding wall section 12 and the central wall section 16 of the manifold block 2. As a result, the elastic member 60 is secured in the lightening groove 14 in a state where, as a result of the elastic force of the bent and elastically deformed spring portion 63, the straight portion 63b of the spring portion 63 is pressed against the arcuate wall portion 17 and the rising portion 62 is pressed against the protruding portion 12 and the central portion 16 of the wall.

[0054]

At this time, a part of the elastic element 60 (the bent portion 63a at the distal end) is located in the mounting groove, passing through the exhaust hole and, thereby, the elastic element 60 is in contact with the silencer element 50 and presses the silencing element 50 to the portion 10 of the lower wall of the mounting groove 8a , 8b. More specifically, a pair of protruding parts 66, 66 of the elastic member 60 puncture or strongly press against the muffler member 50 made of interwoven fiber and therefore restrict the movement of the muffler member 50 and hold it in the mounting groove 8a, 8b.

[0055] In FIG. 7 and 8 show an example in which two elastic members 60 are attached to each of the first mounting groove 8a and the second mounting groove 8b, but the present invention is not limited to such a solution, and the number of elastic members 60 attached to each mounting groove 8a, 8b may be equal to one, three or more. Alternatively, a different number of elastic members 60 can be attached to the first mounting groove 8a and to the second mounting groove 8b. The interval with which the elastic members are attached can also be set accordingly.

[0056]

In FIG. 12 shows an example of a modified resilient member. The elastic element 70 according to this modified example is also formed entirely of a thin plate of metal material and consists of a base portion 71 having the form of a substantially flat plate and a substantially arcuate spring portion 72, which is a continuation of the base portion 71. A substantially circular hole 73 is formed in the base portion 71, extending in the direction of the plate thickness. As with the hole 65 formed in the elastic member 60, this hole 73 is intended to facilitate the detachment of the elastic member 70 attached to the manifold block 2.

[0057]

On the other hand, the spring portion 72 includes a first flat portion 72a bent from the end edge of the base portion 71 to form an obtuse angle with the base portion 71, a curved portion 72b extending from the flat portion 72a and curved so that the bulge is directed substantially orthogonally to section 71 of the base, the second flat section 72c, which is a smooth continuation of the curved section 72b, extending from its distal edge, and the distal end section 72d, bent from the end edge of the second flat section 72c to form an obtuse angle with the second flat portion 72c and inclined to the base portion 71 side. In the resilient floor member 70 of this modified example, the second flat portion 72c and the distal end portion 72d can be bent around the curved portion 72b of the spring portion 72 in the direction in which the second flat portion 72c and the distal end portion 72d come into contact and come out of contact with the first flat section 72a.

[0058] The second flat portion 72c of the elastic member 70 has a substantially L-shaped protruding portion 74 that rises substantially perpendicular outward from the flat surface of the second flat portion 72c. This protruding part 74 is formed by cutting and raising the flat surface of the second flat portion 72c and, like the protruding parts 66 of the elastic element 60 according to the second embodiment, punctures or strongly presses the silencer element 50, thereby obstructing the movement of the silencer element 50 in the mounting groove 8a, 8b.

[0059]

The following is a description of the procedure for holding the silencer member 50 in each mounting groove 8a, 8b by the resilient member 70 of this modified example.

First, the silencer element 50 is placed in the first and second mounting grooves 8a, 8b, and the elastic elements 70 are placed on the side of the lower surface of the manifold block 2, as shown in FIG. 15. At this time, the elastic members 70 have a configuration in which the spring portion 72 is facing up and the convex side of the curved spring portion 71 and the arcuate portion 17 of the wall of the manifold block 2 are facing each other.

[0060] Then, as shown in FIG. 14, the distal end portion 72d of the spring portion 72 is inserted between the lower surface of the silencer member 50 and the protruding portion 12 of the wall of the mounting groove 8a, 8b through the exhaust port 13a, 13b, and is brought into contact with the inner corner portion at which the protruding portion 12 of the wall and a side portion 11 of the wall of the mounting groove 8a, 8b (see Fig. 14). Then, in this state, the spring portion 72 is inserted further in the depth direction of the relief groove 14, that is, to the side of the exhaust opening 13a, 13b, and in the state in which the spring portion 72 is bent, it is brought into contact with the arcuate wall portion 17 ( more specifically, with the upper surface of the wall covering the cutout 18 in Fig. 13 and 14).

[0061]

Then, due to the elastic force of the bent and elastically deformed spring portion 72 of the elastic element 70, the elastic element 70 is elastically held between the corner portion where the protruding wall portion 12 and the side wall portion 11 intersect, and the arcuate wall portion 17 of the facilitating groove 14. At the same time, behind due to the elastic force of the spring portion 72, the second straight portion 72c of the elastic member 70 is in contact with the lower surface of the silencer member 50, and the silencer member 50 is pressed against the bottom portion 10 of the wall oh grooves 8a, 8b. At this time, the protruding part 74 punctures or presses strongly against the silencer element 50 and more reliably prevents the movement of the silencer element 50 in the mounting groove 8a, 8b. In this way, the collector assembly 1C for the electromagnetic valve is configured to which the elastic member 70 is attached according to a modified example (see FIGS. 13 and 14).

[0062]

In FIG. 16 and 17 show a manifold assembly 1D for a solenoid valve according to a third embodiment of the present invention. In this embodiment of the solenoid valve manifold assembly 1D, the silencer member 50 is held in the mounting groove 8a, 8b with glue. More specifically, first, as described for the previous embodiment, the silencer elements 50 are inserted into the first and second mounting grooves 8a, 8b. In this state, glue 80 is introduced between the inner walls of the mounting grooves 8a, 8b and the outer peripheral surfaces of the silencer elements 50 from the exhaust side 13a, 13b in the mounting grooves 8a, 8b.

[0063]

Due to this, the silencer elements 50 are attached to the walls of the fixing grooves 8a, 8b (the lower surfaces of the silencing elements 50 and the surfaces of the protruding sections 12 of the fixing grooves 8a, 8b in the example of FIG. 16) with hardened adhesive 80, and the silencing elements 50 can be held in the fixing grooves 8a , 8b in a state in which their movement is restricted. At this time, as shown in FIG. 16 and 17, when adhesive bridges are formed that extend across the entire width of the exhaust openings 13a, 13b to connect the opposing protruding wall sections 12, 12, the silencer elements 50 are more securely held in the mounting grooves 8a, 8b. The type of glue is not substantially limited, and any glue capable of holding the silencer elements 50 in the fixing grooves 8a can be used. 8b.

[0064]

In a third embodiment, as shown in FIG. 17, the silencer member 50 is glued to one mounting groove in two places, but the present invention is not limited to such a solution, and it can be glued in that place or in multiple places.

[0065]

Although the collector assembly for the solenoid valve of the present invention has been described in detail above, it should be understood that the present invention is not limited to the above options and various changes can be made to their design without departing from the scope of the inventive idea.

[0066]

For example, in the first embodiment described, solenoid valves 30 with a single control valve 31 are installed on the surface 2A for mounting the valves of the manifold block, however, electromagnetic valves with two control valves can be installed. In each of the options, the cross section of the mounting grooves 8a, 8b has a substantially rectangular shape, however, this shape is not required. For example, the mounting grooves 8a, 8b may have a different cross-sectional shape, for example, round or elliptical.

[0067]

Although the entire silencer element 50 is entirely made of sound-absorbing material, it can be formed so that the sound-absorbing material is at least at the junctions between the individual exhaust ducts 9a, 9b and the fixing grooves 8a, 8b. For example, it can be formed by a combination of sound-absorbing material and other material. The protruding sections 12 of the wall of the mounting grooves 8a, 8b forming the exhaust openings 13a, 13b are formed over the entire area of the mounting grooves, but if the silencing elements 50 can be held in the mounting grooves, they can also be made only part of the length of the grooves in the axial direction.

List of items

[0068]

1A, 1B, 1C, 1D - collector assembly

2 - collector block

2A - surface for mounting valves

3 - mounting area

5 - common supply air channel

6 - individual air supply path

8a, 8b - mounting groove

9a, 9b - individual exhaust path

30 - the electromagnetic valve

50 - silencer element

60, 70 - elastic element

80 - glue

Claims (18)

1. A manifold assembly for a solenoid valve for mounting a plurality of solenoid valves adjacent to each other, comprising a manifold block having a valve mounting surface on which a plurality of mounting regions are located adjacent to each other for mounting the electromagnetic valves, and an air supply channel opening into the mounting regions of the surface for mounting the valves and for supplying compressed air to the electromagnetic valves, and silencer elements to suppress the sound of exhaust coming out of solenoid valves, the manifold block further comprises mounting grooves for attaching silencer elements and a plurality of individual exhaust paths branching from the mounting grooves and open in the mounting regions of the mounting surface of the valves, holes are made along the axes of the mounting grooves as exhaust holes on the outer peripheral surface of the manifold block, silencer elements are held in mounting grooves, wherein the individual exhaust paths communicate with the exhaust openings through the silencer elements. 2. The assembly according to claim 1, wherein the mounting grooves are made in a direction in which the mounting areas on the surface for mounting valves are located next to each other, wherein the mounting grooves extend between both end surfaces of the manifold block. 3. The assembly according to claim 2, in which brackets are removably attached to both end surfaces of the collector block, which cover the end holes of the mounting grooves that open on both end surfaces of the collector block. 4. The assembly according to claim 2, wherein facilitating grooves extend along the mounting grooves along the lower surface of the manifold block, the exhaust openings being open in the walls of the facilitating grooves. 5. The node according to claim 4, in which elastic elements having spring elasticity are attached to the facilitating grooves due to elastic force in the state of elastic deformation of the elastic elements, while the elastic elements abut the silencer elements in the mounting grooves through the exhaust holes, and thereby silencer elements are held in the mounting grooves. 6. The node according to claim 5, in which the elastic elements are pressed against the silencer elements by the elastic force generated by the elastic deformation. 7. The assembly according to claim 2, wherein the silencer elements are held in the mounting grooves by fixing with glue in the mounting grooves. 8. The assembly according to claim 2, wherein the supply channel comprises a common supply air channel for supplying general compressed air to a plurality of electromagnetic valves and a plurality of individual supply air paths branching from the common supply air channel and open on the surface for mounting the valves, the common supply the air channel is parallel to the mounting grooves and passes between both end surfaces of the manifold block. 9. The assembly of claim 8, wherein the mounting grooves are located on both sides of the common supply air channel. 10. The node according to claim 1, in which the elements of the silencer contain sound-absorbing material, and sound-absorbing material is located at least at the connections with individual exhaust routes in the mounting grooves. 11. The assembly of claim 2, wherein the silencer elements comprise sound-absorbing material, and sound-absorbing material is located at least at the connections to the individual exhaust paths in the mounting grooves. 12. The assembly of claim 10, wherein the silencer elements are integrally formed from sound-absorbing material in the form of a bar having substantially the same cross section as the mounting grooves and having substantially the same axial length as the mounting grooves. 13. The assembly of claim 11, wherein the silencer elements are integrally formed from a sound-absorbing bar-shaped material having substantially the same cross section as the mounting grooves and having substantially the same axial length as the mounting grooves. 14. A solenoid valve block comprising a plurality of solenoid valves mounted on mounting surface areas for mounting valves of a manifold assembly for a solenoid valve according to claim 1.

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